Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
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DHD380 DTH hammer of DTH drilling tools for waterwell drilling
Application Range
It is widely applied to all kinds of rock drilling and excellent for casing systems and water well projects.
Design Principles
To pursuit smooth operation and reliability.
Outstanding Advantages
The simple structure ensures the easy operation and maintenance. The good seal effect eliminates the problem caused by water and flushing entering into the inner cylinder of hammer. They also have the features of large
| ITERM DESCRIPTION | ||||
| NO | PART LIST | |||
| 1 | TOP SUB | 26JJ10 | PRODUCT NAME | DHD380 |
| 2 | TOP SUB RING | 145*5.3 | PRODUCT CODE | 08SH00 |
| 3 | CHECK VALVE | 26Q311 | BIT TYPE | D380 WITH FOOT VALVE |
| 4 | SRPING | 130*30*3.2*10.5 | THREAD CONNECTION | API 4 1/2 REG |
| 5 | AIR DISTRIBUTING SEAT | 26JJ20 | WORKING PRESSURE (BAR) | 14-24 |
| 6 | INNER CYLINDER | 26JJ30 | AIR CONSUMPTION 24BAR (M3/MIN) | 21.8 |
| 7 | PISTON | 08SH50-L | RECONMENDED ROTATION SPEED | 30-50 |
| 8 | OUTER CYLINDER | 08SH40-N | OUTSIDE DIA (MM) | 182 |
| 9 | BUSH DRIVE SUB | 06SH60-C | LENGTH WITH OUT BITS | 1364.5 |
| 10 | CHUCK SLEEVE STELL RING | B1-SK08H-A4001-55 | WEIGHT | 187 |
| 11 | O RING | 125*5.3 | NORMAL AXIAL PRESUURE (KN) | 18.3 |
| 12 | BIT RETAINER RING | 26JJ70 | REC HOLE SIZE(MM) | 203-279 |
| 13 | CHUCK SLEEVE | B1-SK08H-A4001-58 | FLAT WENCH(MM) | 150 |